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Find Second story addition builders in Whippany

Avatar for All Around Renovations LLC

All Around Renovations LLC

4.77(
75
)
Approved Pro

All Around Renovations LLC

4.77(
75
)
Approved Pro
Customers say: Quality work
111 local quotes requested
20 years of experience

We are a Home Improvement Contractor you can count on to get the job done, with quality services at affordable prices. All sub-contractors are licensed and fully insured. We are also a 203k construction loan approved contractor. To set up a free home or business estimate, please call Michael at 973-233-8162 (M-F 7AM-5PM) or email me at aarenovations@yahoo.com. Check out our website - www.allaroundrenovationsnj.com

"We hired Michael to renovate our 100-year-old farmhouse-style colonial, and the results were outstanding. He managed a full kitchen overhaul, including an addition that expanded the space and added a hallway—dramatically improving the home's flow. He also built a beautiful new deck, refinished the original oak floors, painted every room, and updated two bathrooms, including a custom shower with French stone tile. Michael’s communication was excellent—clear, timely, and always professional. His attention to detail and high-quality craftsmanship showed in every phase of the project. Most importantly, he took a truly consultative approach, offering thoughtful guidance while always respecting our vision. Highly recommend!"

Shawn R on July 2025

We are a Home Improvement Contractor you can count on to get the job done, with quality services at affordable prices. All sub-contractors are licensed and fully insured. We are also a 203k construction loan approved contractor. To set up a free home or business estimate, please call Michael at 973-233-8162 (M-F 7AM-5PM) or email me at aarenovations@yahoo.com. Check out our website - www.allaroundrenovationsnj.com

"We hired Michael to renovate our 100-year-old farmhouse-style colonial, and the results were outstanding. He managed a full kitchen overhaul, including an addition that expanded the space and added a hallway—dramatically improving the home's flow. He also built a beautiful new deck, refinished the original oak floors, painted every room, and updated two bathrooms, including a custom shower with French stone tile. Michael’s communication was excellent—clear, timely, and always professional. His attention to detail and high-quality craftsmanship showed in every phase of the project. Most importantly, he took a truly consultative approach, offering thoughtful guidance while always respecting our vision. Highly recommend!"

Shawn R on July 2025


All-Star Contractors of Hunterdon County, LLC

4.73(
30
)
Approved Pro

All-Star Contractors of Hunterdon County, LLC

4.73(
30
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1095 local quotes requested

EXCELLENCE IN RESIDENTIAL CONSTRUCTION! ATTENTION FLIPPERS: Make us a part of your team! We will take your property from unlivable to ready to sell. **WE SPECIALIZE IN MAJOR RECONSTRUCTION FOR HOUSE FLIPS AND FOR HOMES INVOLVED IN FIRES ETC. We do it ALL. From design & permit work to construction and finish. We have served central New Jersey for over 50 years. We have all the necessary in house specialist that can provide top quality performance for any job. Call or click to schedule an estimate today!

"All-Star Contractors was a pleasure to work with on my garage project. Bill scheduled an assessment and was right on time, during which he provided a competitive estimate for the whole project. The garage included electric, cement, roofing, and custom shelves, all of which Bill and his team were able to provide. His team showed up on time every morning and got the work done on the agreed-upon timeline. Bill was easy to work with an accommodated several special requests and his team did a fantastic job on the project. I would hire him again for any construction or home improvement needs!"

Thomas H on June 2025

EXCELLENCE IN RESIDENTIAL CONSTRUCTION! ATTENTION FLIPPERS: Make us a part of your team! We will take your property from unlivable to ready to sell. **WE SPECIALIZE IN MAJOR RECONSTRUCTION FOR HOUSE FLIPS AND FOR HOMES INVOLVED IN FIRES ETC. We do it ALL. From design & permit work to construction and finish. We have served central New Jersey for over 50 years. We have all the necessary in house specialist that can provide top quality performance for any job. Call or click to schedule an estimate today!

"All-Star Contractors was a pleasure to work with on my garage project. Bill scheduled an assessment and was right on time, during which he provided a competitive estimate for the whole project. The garage included electric, cement, roofing, and custom shelves, all of which Bill and his team were able to provide. His team showed up on time every morning and got the work done on the agreed-upon timeline. Bill was easy to work with an accommodated several special requests and his team did a fantastic job on the project. I would hire him again for any construction or home improvement needs!"

Thomas H on June 2025


Avatar for Frank Mineo Electrical Contractor Inc

Frank Mineo Electrical Contractor Inc

4.83(
40
)

Frank Mineo Electrical Contractor Inc

4.83(
40
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Frank Mineo Electrical Contractor, Inc.has been in business 1988. Our work spans the gamut from small Homeowner installations, repairs, remodels, additions and new construction to industrial and Commercial facility remodeling, equipment and machinery installation and service. As a Certified Kohler Generators Dealer our customers are assured peace of mind that we will design and install a backup generator system that meets their needs and fits their budget. Whether a large corporation or a homeowner in a local neighborhood We give free estimates to all prospective clients. Our reputation is built on the quality of our work, reliability and our desire to address all of our clients' concerns in a most personable way. We occasionally offer special promotions. See our reviews to hear what customers say about Mineo Electric!

"Showed up on time. Performed a good job. Friendly."

Mark M on March 2020

Frank Mineo Electrical Contractor, Inc.has been in business 1988. Our work spans the gamut from small Homeowner installations, repairs, remodels, additions and new construction to industrial and Commercial facility remodeling, equipment and machinery installation and service. As a Certified Kohler Generators Dealer our customers are assured peace of mind that we will design and install a backup generator system that meets their needs and fits their budget. Whether a large corporation or a homeowner in a local neighborhood We give free estimates to all prospective clients. Our reputation is built on the quality of our work, reliability and our desire to address all of our clients' concerns in a most personable way. We occasionally offer special promotions. See our reviews to hear what customers say about Mineo Electric!

"Showed up on time. Performed a good job. Friendly."

Mark M on March 2020


Avatar for AJ Perri

AJ Perri

4.31(
1,531
)

AJ Perri

4.31(
1,531
)
Customers say: Super punctual
54 years of experience

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"This past weekend I had a bad experience. The short story is that an A. J. Perri technician diagnosed my furnace problem and wrote me an estimate for $1,600, parts and labor. It turns out my furnace had a different problem that required no parts and only 15 minutes of labor. Here are the details: This past Saturday my furnace stopped heating my home. I called A.J. Perri and they sent out a technician on Sunday morning. The tech ran some checks and concluded that my “inducer assembly” had to be replaced. Parts and installation would be $1,600. He said someone from the office would contact me on Monday and let me know when they could have the part. He also said that he couldn't be certain that there weren't other issues that wouldn't be found until the inducer was repaired. After the technician left I did some searching on the Internet. YouTube and Reddit were especially helpful. I discovered that the problem was that the condensate drain was clogged and water had backed up into the inducer assembly. The water prevented the pressure switches from detecting that the inducer was running and this prevented the furnace from starting. When I disconnected the condensate hose *2 quarts* of water drained out of the inducer assembly! This water was supposed to drain into a small pump unit on the floor that sends collected water to the sump. Over the years mold and algae had clogged the condensate trap and caused the backup. I disconnected all the hoses and removed the trap. I blew out the trap (making a mess) and confirmed that water would easily flow through it. I put it all back together and the furnace is working fine. The sad lesson here is that you can’t always rely on supposed experts. The good news is that the Internet can be your friend. Even more details: The original symptom was that the furnace would start up, the inducer motor would run for about 20 seconds and then it would shut off. This cycle would repeat every few minutes. Every few hours the furnace completed the startup cycle and then I’d get heat. Then it would stop heating for hours, and the indoor temperature would drop to the low 60s. What I learned from YouTube is that there are multiple stages for furnace startup. The inducer motor spins a cage that sucks in fresh air for combustion, and then pushes the hot gases through the heat exchanger and out the flue. Each stage in the startup has safety checks. The furnace will not ignite if the pressure sensors don’t detect that the inducer motor is working properly. Water is a byproduct of the combustion. It starts as a vapor but then condenses in the flue pipe and drains back to the inducer assembly, where it’s supposed to run through a hose to a pump that sends it over to my basement sump. The furnace is 14 years old. Apparently that’s long enough for mold and algae to clog the condensate trap and cause water to back up into the inducer. The 2 qts of water blocked the pressure sensor switches and so the furnace wouldn’t light. Final thoughts: For over 14 years I've had great experiences with A.J. Perri. They replaced my home’s original furnace and Air Conditioner units. They moved our outside A/C unit to the side of our house so we could have more quiet in the backyard. I had them come for periodic heating and A/C maintenance checkups. My impression is that they might cost a bit more, but they were reliable. I'm saddened that I need to post such a negative review."

Jeffrey P on January 2024

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"This past weekend I had a bad experience. The short story is that an A. J. Perri technician diagnosed my furnace problem and wrote me an estimate for $1,600, parts and labor. It turns out my furnace had a different problem that required no parts and only 15 minutes of labor. Here are the details: This past Saturday my furnace stopped heating my home. I called A.J. Perri and they sent out a technician on Sunday morning. The tech ran some checks and concluded that my “inducer assembly” had to be replaced. Parts and installation would be $1,600. He said someone from the office would contact me on Monday and let me know when they could have the part. He also said that he couldn't be certain that there weren't other issues that wouldn't be found until the inducer was repaired. After the technician left I did some searching on the Internet. YouTube and Reddit were especially helpful. I discovered that the problem was that the condensate drain was clogged and water had backed up into the inducer assembly. The water prevented the pressure switches from detecting that the inducer was running and this prevented the furnace from starting. When I disconnected the condensate hose *2 quarts* of water drained out of the inducer assembly! This water was supposed to drain into a small pump unit on the floor that sends collected water to the sump. Over the years mold and algae had clogged the condensate trap and caused the backup. I disconnected all the hoses and removed the trap. I blew out the trap (making a mess) and confirmed that water would easily flow through it. I put it all back together and the furnace is working fine. The sad lesson here is that you can’t always rely on supposed experts. The good news is that the Internet can be your friend. Even more details: The original symptom was that the furnace would start up, the inducer motor would run for about 20 seconds and then it would shut off. This cycle would repeat every few minutes. Every few hours the furnace completed the startup cycle and then I’d get heat. Then it would stop heating for hours, and the indoor temperature would drop to the low 60s. What I learned from YouTube is that there are multiple stages for furnace startup. The inducer motor spins a cage that sucks in fresh air for combustion, and then pushes the hot gases through the heat exchanger and out the flue. Each stage in the startup has safety checks. The furnace will not ignite if the pressure sensors don’t detect that the inducer motor is working properly. Water is a byproduct of the combustion. It starts as a vapor but then condenses in the flue pipe and drains back to the inducer assembly, where it’s supposed to run through a hose to a pump that sends it over to my basement sump. The furnace is 14 years old. Apparently that’s long enough for mold and algae to clog the condensate trap and cause water to back up into the inducer. The 2 qts of water blocked the pressure sensor switches and so the furnace wouldn’t light. Final thoughts: For over 14 years I've had great experiences with A.J. Perri. They replaced my home’s original furnace and Air Conditioner units. They moved our outside A/C unit to the side of our house so we could have more quiet in the backyard. I had them come for periodic heating and A/C maintenance checkups. My impression is that they might cost a bit more, but they were reliable. I'm saddened that I need to post such a negative review."

Jeffrey P on January 2024


Cervantes inc

5.00(
1
)

Cervantes inc

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Cervantes Inc LLC is a full-service remodeling and building contractor. We offer a variety of services from and kitchen/bath to complete home remodels. At Cervantes Inc we strive to offer quality products in a timely manner to insure one-on-one service with the customer.

"Hector was very efficient and took his time. He did an amazing job and will definitely be using his services again."

Sierra B on May 2024

Cervantes Inc LLC is a full-service remodeling and building contractor. We offer a variety of services from and kitchen/bath to complete home remodels. At Cervantes Inc we strive to offer quality products in a timely manner to insure one-on-one service with the customer.

"Hector was very efficient and took his time. He did an amazing job and will definitely be using his services again."

Sierra B on May 2024


Jonathan Alexander & Sons Moving

No reviews yet

Jonathan Alexander & Sons Moving

No reviews yet
50 years of experience

Alexander & Son's Moving has over 30 years of experience in the moving industry. We are a professional family owned business that will handle your items with care from beginning to end. We will make the relocation process an easy one. We have reputable references, please contact us for more information.

Alexander & Son's Moving has over 30 years of experience in the moving industry. We are a professional family owned business that will handle your items with care from beginning to end. We will make the relocation process an easy one. We have reputable references, please contact us for more information.


Schaffer Structural Systems

5.00(
4
)

Schaffer Structural Systems

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family own & operated.

"The old fence was removed; the ground regraded in several spots; the new rail post & rail fence installed including two gates. All the old fencing materials were taken away and a through cleanup performed. This all as per their price and performance quote."

Joseph S on April 2023

Family own & operated.

"The old fence was removed; the ground regraded in several spots; the new rail post & rail fence installed including two gates. All the old fencing materials were taken away and a through cleanup performed. This all as per their price and performance quote."

Joseph S on April 2023


Punchlist Inc

5.00(
1
)

Punchlist Inc

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family Owned and Operated

Family Owned and Operated


CUSTOM SPRAYING AND REGLAZING

4.73(
33
)

CUSTOM SPRAYING AND REGLAZING

4.73(
33
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Reglazing of bathtubs,sinks,tiles,electrostatic painting of metal surfaces,office furniture ,metal kitchen cabinets

Reglazing of bathtubs,sinks,tiles,electrostatic painting of metal surfaces,office furniture ,metal kitchen cabinets


T & A Plumbing

No reviews yet

T & A Plumbing

No reviews yet
14 years of experience

Female run plumbing business with over 30 years experience. Free estimates. We specialize in boilers, water heaters (tankless and standard), new construction and repairs that many will not even attempt. And as the entire crew is family, you can be assured to get the best pricing and service every time. We also have a tight-knit network of subcontractors for any other service you may need, so one call is all you need to make to get the job done right!

Female run plumbing business with over 30 years experience. Free estimates. We specialize in boilers, water heaters (tankless and standard), new construction and repairs that many will not even attempt. And as the entire crew is family, you can be assured to get the best pricing and service every time. We also have a tight-knit network of subcontractors for any other service you may need, so one call is all you need to make to get the job done right!

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FAQs for second story addition building service projects in Whippany, NJ

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Whippany, NJ homeowners’ guide to second story addition building services

From average costs to expert advice, get all the answers you need to get your job done.